if (typeof coordinates !== 'undefined') {
    lat = coordinates.split(",")[0];
    lng = coordinates.split(",")[1];
    let latlng = L.LatLng(lat, lng);
    let marker = L.marker(latlng, draggable=false).addTo(mycheckmap);
    let mycheckmap = L.map('checkmap').setLatLng(latlng);

    L.tileLayer('https://api.mapbox.com/styles/v1/{id}/tiles/{z}/{x}/{y}?access_token={accessToken}', {
        attribution: 'Map data &copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors, Imagery © <a href="https://www.mapbox.com/">Mapbox</a>',
        maxZoom: 18,
        id: 'mapbox/streets-v11',
        tileSize: 512,
        zoomOffset: -1,
        accessToken: 'pk.eyJ1IjoidW5jbGVzYW11bHVzIiwiYSI6ImNrbXQwNDl5MTBtc2gybm82b3c0M3VoNncifQ.qUqAuCuMDF38NcyrAC1RJQ'
    }).addTo(mycheckmap);
}